- engine issue!!!
- Induction kit trouble.
- turbo timers
- Car Died Yeasterday
- Pic Request - pipes/hoses
- been looking at this....
- f23 boxes for turbos
- is it normal? i hit rev limiter and car goes std?
- Blowing manifold question
- Bailey DV26 vs Bailey Trumpet valve
- Replacing a Z20LET, any advice welcome
- Bmc CDA air filters?
- removed fmic, need pic of OE connection
- ZLET power comes in waves???
- 1.9 Cdti airbox mod
- Faulty AFM?
- Can anyone recommend a decent heat wrap for my downpipe?
- Pre-cat pipe = more noise?
- anybody knows new z20let engine prices
- Boost gauge, Sorry!!
- rear boost controll valve part number
- smell!!(z20let)
- no boost in 1st gear ?
- group buy intercooler, what do i need again....
- Panel filter 888 or courtney
- VXR Injectors
- Catch Tank
- blue smoke help!!
- anyone fancing helping me out ?
- zlet MAP sensor
- Boost Control solenoid?
- Injector CC
- boost not holding
- The sum total of that damage to my Coupe....
- Standard boost
- Actuator
- Service...
- starter motor z20let
- part numbers required for z20let
- Cossie Actuator boost?
- need some help with one way valve
- Boost gauge
- rattle
- z20let one way valve question
- OE Dumpvalve Replacable?
- Wastegate chatter
- help me diagnose engine problem
- vxr turbo
- Cool stat
- 2 litre turbo
- What is the Model no. for VXR AFM?
- Astra Coupe Turbo - Z20LET
- Sports cat for Z20LET
- Cam cover
- How to check for Boost Leaks?
- Service Time
- dump valve piping
- Manifold Heatsheild
- hesitation & spiky boost sorted!
- Plugs
- Slight Oil Leak
- Z20LET in Coupe & Z20LET in GSI
- smokes from turbo.
- Boosting
- vxr turbo and standard map
- Astra GSI G Outlet manifold
- BKR6EIX plug gap..
- Fastest astra z20let in uk
- Notchy 3rd Gear
- what dump valve
- front mounted intercooler astra sri 190
- fmic making engine hot.
- Oil Level Sensor Removal Question
- Will this dump valve fit
- Dump valve for a mk5 turbo
- LEH vs LET intercooler
- Turbo Stall
- Difference in Coutenay stages
- turbo gasket
- Regal cam now fitted
- M32 To Z20LET
- Uprated Actuator for CS4 Setup?
- Will this work? driving on axel stands..
- Changing Front Boost Solenoid
- Checking for wastegate sticking?
- engine management light help lol need quick answer
- z20-let ecu
- Gearbox help! (been searching)
- abs light
- Temporarily swap all hoses/pipes?
- Apexi air filter..
- vxr actuator and vxr injectors on cs2??
- Exhaust system advice please
- Drive shaft/CV/ABS issue - loud bangs and erratic speedo
- oil pressure and oil temp gauges...
- any advice when servicing?
- engine cutting out when hot
- Does this boost sound right?
- regal switchable boost
- Air con fan - Slim line fan
- Sri turbo gearbox probs-help appreciated
- Lots of Flutter/Chatter
- fast road cams into the z20let
- remap? Vmax, regal, courtenay, eds...
- Oil in a strange place
- boost gauge fitted
- help!!
- regal phases
- CS4 or regal 3.5 with stock clutch
- coolant problem?
- mk4 gsi LSD?
- 9litre cooler info
- TR Stamp on f23 box
- z20let lightened flywheel & uprated clutch
- where the hell does it go ?
- astra mk4 c20let gear box issues
- Cost of VXR short engine?
- Battery rating?
- T888 Exhaust size
- rear pads question
- Earth wires to modify?
- Exhaust issues
- which calipers have i got?
- calibra turbo
- VXR suspension in MK4
- Just fitted Courtenay Uprated Actuator
- have I blown my turbo ???
- Turbo timer
- Help
- service and cam betl!!!! AARRRGGGG!!!!!
- z20let VXR turbo
- Hose size on z20let rocker cover
- Oil catch tank
- Manifold Gasket
- Dimensions of zlet exhaust flexy joint
- Cracked Manifold?
- Engine issue's 52 Gsi
- Smoking zlet @ 90 degrees??
- Allen key size for OE dumpvalve removal
- gauges
- Just had car on the rollers....
- astra coupe turbo
- Smoke on idle
- Anyone had problems with management light after fitting dump valve?
- vxr boost?
- Just found this...
- Turbo dump valve
- Turbo water feed
- Engine Ventilation probs
- intercooler pipe question
- turbo conversion
- ABs & TC Light strangeness
- getting more noise/flutter sound from dump valve
- intercooler pipe work
- LEL turbo part number?
- coolent temp sensor
- Boost solenoids confusion and part numbers
- Z20LET DV advice noob here
- Torque or BHP?
- Z20LET, 4th year service
- FMIC diffrence
- Cam Pulley Question
- how to identify cams!
- Fitting a Manifold?
- Odd noise developed Z20LET
- 2.2 or 1.9 airbox for zlet?
- Please Help: Z20LET Stuttering and Jerking at half throttle
- EDS Phase 3.5 without VXR AFM?
- rocket cover gasket
- Anyone with 2.2 Airbox fitted?
- Tuning
- Tappets?
- Turbo flutter/dump valve thread #2 bamboozled
- cool running thermostat
- Smoke from Oil Filler Cap
- Turbo Leak
- Rolling Road Graph
- Whiring Noise
- Temp fix for cracked manifold
- Humble pie.......
- After 3 years it's died
- Running in after a new engine
- Z20 Top Hat an mods
- Regal stage 3.5 + inlet cam
- Z20LEH into MK4
- gsi idling
- GSI Flat spot
- vxr turbo
- Cheap cam belt kit?
- Hose Part Number
- which 1
- Recirc Valve Internals
- vxr air intake
- hks iriduim spark plugs s35i
- has this been answered?
- Smoking on idle, only after used...
- my gsi has delveloped a problem...
- vectra c intake
- part number required please
- Small oil leak
- Intercooler?
- Water Pump Maybe? Please Help..
- Efficiency Map of standar turbo
- Sorted my dodgy idle earth connection today
- Forged Pistons
- turbo flutter chatter
- vxr turbo
- Low speed jerking! Any1 else suffer it?
- intercooler for mk5 turbo
- DV26 pics please
- Breather Hose
- Chain or Belt?
- Oil in Inlet Pipe
- Coolant/Air Con light on, on the dashboard
- Long story, all about an oil leak....
- Advice on Fuel Trims
- What the hell is bank 3 (ODB2 Diagnostic)
- Petrol Smell
- Z20 LET question....
- Dump valve question..not yourr average one!
- Exhaust manifold gasket question
- How much does it cost too...
- 2.2 airbox problems!!!
- z20let rocker cover question?
- Where is the tc fuse?
- Renewing all vacuum hoses.. advice please
- gear box advice please
- Some help please
- Anyone got a milltek system?
- 1.9 Airbox & Rocker Breather Hose
- part number request
- Air Con Compressor Question
- Exhaust query...
- Radiators on the Astra?
- price for hydraulic tappets
- Help Quiet dump valve!
- 70k miles and its started to go...
- How do you tell the difference between...
- Upgrading to VXR Turbo (DIY jobbie)
- strange noise?
- Another smokey Z20 LET
- Idling problem when warm
- car is feeling a bit slow , astra gsi mk4
- What does my ECU look like?
- Changing spark plugs
- Standard original dump valve inop!
- f23 clutch. How much??
- t/c light wont switch off!
- I can smell petrol
- Fitted VXR Turbo